<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
                <el-col :span="4">
                <el-button type="primary" @click="goAddpage">添加商品</el-button>
            </el-col>
            </el-row>

            <!-- table表格区域 -->
            <el-table :data="goodslist" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
            <el-table-column label="创建时间" prop="add_time" width="160px">
                <template slot-scope="scope">
                    {{scope.row.add_time | dateFormat}}
                </template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template slot-scope="scope">
                    <el-button type="primary" size="mini" icon="el-icon-edit"></el-button>
                    <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页区域 -->
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum" 
            :page-sizes="[5, 10, 15, 20]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
            </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0
        };
    },

    created() {
        this.getGoodsList()
    },

    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const {data: res} = await this.$http.get('goods',{ params: this.queryInfo })
            if(res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败！')
            } 
            
            this.$message.success('获取商品列表成功！')
            console.log(res.data);
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        handleSizeChange(newsize) {
            this.queryInfo.pagesize = newsize
            this.getGoodsList()
        },
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        async removeById(id) {
            const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
        }).catch(err => err)

            if(confirmResult !== 'confirm') {
                return this.$message.info('已取消删除！')
            }

            const {data: res} = await this.$http.delete(`goods/${id}`)

            if(res.meta.status !== 200) {
                return this.$message.error('删除失败！')
            }

            this.$message.success('删除成功！')
            this.getGoodsList()
        },
        goAddpage() {
            this.$router.push('/goods/add')
        }
    },
};
</script>

<style lang="less" scoped>

</style>